Video display apparatus and video display method

Abstract

A video display apparatus includes a display section that carries out a display process based on a drive signal and a drive section that outputs to the display section a first drive signal based on a video signal having undergone video processing in a first video processing section at a fixed cycle and a second drive signal based on a video signal having undergone video processing in a second video processing section at the same cycle as the cycle at which the first drive signal is outputted but at timing shifted from the first drive signal by one-half the cycle. When the video signals contain two-dimensional video images, the first video processing section produces a video signal for two-dimensional video images and the second video processing section produces a video signal for black screen insertion.

What is claimed is: 
     
       1. A video display apparatus comprising:
 a memory; and 
 a processor configured to:
 carry out a display process based on a drive signal; 
 acquire a video signal; 
 determine whether the video signal is a two-dimensional video signal or a stereoscopic video signal; 
 perform first video processing and second video processing on the acquired video signal; and 
 output to a display: (i) a first drive signal based on the video signal having undergone the first video processing at a fixed cycle, and (ii) a second drive signal based on the video signal having undergone the second video processing at the same cycle as the cycle at which the first drive signal is outputted but at a timing that is shifted from a timing of the first drive signal by one-half the cycle, wherein
 when the processor determines that the acquired video signal contains stereoscopic video images, the first video processing produces a video signal for one of the right and left eyes, and the second video processing produces a video signal for the other one of the right and left eyes, 
 when the processor determines that the acquired video signal contains two-dimensional video images, the first video processing produces a video signal for two-dimensional video images, and the second video processing produces a video signal for black screen insertion, and 
 
 the processor is further configured to:
 determine, based on user input, whether stereoscopic video images contained in the acquired video signal are to be displayed as stereoscopic video images or two-dimensional video images, and 
 when the stereoscopic video images are determined to be displayed as two-dimensional video images, the second video processing is replaced by a video processing that produces a video signal for black screen insertion. 
 
 
 
     
     
       2. The video display apparatus according to  claim 1 , wherein the processor is further configured to:
 determine, based on user input, whether or not black screens are to be inserted when two-dimensional video images are displayed, and 
 prevent output of the second drive signal, when it is determined that the black screens are to be inserted. 
 
     
     
       3. The video display apparatus according to  claim 1 , wherein the processor is further configured to:
 determine, based on user input, whether or not black screens are to be inserted when two-dimensional video images are displayed, and 
 when the stereoscopic video images are determined to be displayed as two-dimensional video images, and it is determined that black screens are to be inserted when two-dimensional video images are displayed, prevent output of the second drive signal. 
 
     
     
       4. A video display method comprising:
 acquiring a video signal; 
 determining, by a processor, whether the video signal is a two-dimensional video signal or a stereoscopic video signal; 
 performing first video processing and second video processing on the acquired video signal; and 
 outputting to a display: (i) a first drive signal based on the video signal having undergone the first video processing at a fixed cycle, and (ii) a second drive signal based on the video signal having undergone the second video processing at the same cycle as the cycle at which the first drive signal is outputted but at a timing that is shifted from a timing of the first drive signal by one-half the cycle, wherein
 when the processor determines that the acquired video signal contains stereoscopic video images, the first video processing produces a video signal for one of the right and left eyes, and the second video processing produces a video signal for the other one of the right and left eyes, 
 when the processor determines that the acquired video signal contains two-dimensional video images, the first video processing produces a video signal for two-dimensional video images, and the second video processing produces a video signal for black screen insertion, and 
 
 the processor is further configured to:
 determine, based on user input, whether stereoscopic video images contained in the acquired video signal are to be displayed as stereoscopic video images or two-dimensional video images, and 
 when the stereoscopic video images are determined to be displayed as two-dimensional video images, the second video processing is replaced by a video processing that produces a video signal for black screen insertion.